1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.theme;
24  
25  import com.liferay.portal.util.PropsValues;
26  
27  import org.apache.commons.pool.BasePoolableObjectFactory;
28  import org.apache.commons.pool.ObjectPool;
29  import org.apache.commons.pool.impl.StackObjectPool;
30  
31  /**
32   * <a href="PortletDisplayFactory.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Brian Wing Shun Chan
35   */
36  public class PortletDisplayFactory {
37  
38      public static PortletDisplay create() throws Exception {
39          if (PropsValues.COMMONS_POOL_ENABLED) {
40              return (PortletDisplay)_instance._pool.borrowObject();
41          }
42          else {
43              return new PortletDisplay();
44          }
45      }
46  
47      public static void recycle(PortletDisplay portletDisplay) throws Exception {
48          if (PropsValues.COMMONS_POOL_ENABLED) {
49              _instance._pool.returnObject(portletDisplay);
50          }
51          else if (portletDisplay != null) {
52              portletDisplay.recycle();
53          }
54      }
55  
56      private PortletDisplayFactory() {
57          _pool = new StackObjectPool(new Factory());
58      }
59  
60      private static PortletDisplayFactory _instance =
61          new PortletDisplayFactory();
62  
63      private ObjectPool _pool;
64  
65      private class Factory extends BasePoolableObjectFactory {
66  
67          public Object makeObject() {
68              return new PortletDisplay();
69          }
70  
71          public void passivateObject(Object obj) {
72              PortletDisplay portletDisplay = (PortletDisplay)obj;
73  
74              portletDisplay.recycle();
75          }
76  
77      }
78  
79  }